Custom Turbo Build (Twin Scrol EFR 6758)
 

Hey Everyone,

I've been slowly working on this project for quite some time and thought this may interest a few. So right off the bat I'm just going to go ahead and answer the questions I know will be asked.

Why turbo over supercharger?
Cosworth, Edelbrock, and Jackson Racing have really good offerings and I don't think I would be disappointed with any of them. BUT.. I just really like turbos. And living in CA and having this crappy 91 it is a huge benefit to me to be able to vary boost levels depending on fuel using a flex fuel setup. This isn't possible with a SC setup.

Why did I decide to go the custom route rather than just buy a kit?
There are some really good turbo kits already on the market (pTuning, Full Blown, Full-Race, MAP, etc.) however, none of them checked all of the boxes for me. The ptuing setup is close to what I want but not exactly. And in the end I also just wanted to do my own thing. Fill up those rainy days.

What are my goals?
Eventually my car will be track only but for the next couple of years it will still be my DD. Actually, I love driving this car so I am going to DD for as long as possible. In that regard I am trying to build a car capable of being regularly thrashed at the track and reliable enough to DD. Making a car fast is easy. Making it fast while remaining reliable enough to take anything thrown at it is not. Nor is it cheap unfortunately.

Am I going to build the motor?
Not yet. But eventually.

Current status:
http://i307.photobucket.com/albums/n...ps2r8mldpu.jpg
http://i307.photobucket.com/albums/n...pshvrt4pa9.jpg

Today's progress:
http://i307.photobucket.com/albums/n...psklhs22vm.jpg
http://i307.photobucket.com/albums/n...pspeo9ynz6.jpg
http://i307.photobucket.com/albums/n...psqvs4rtqg.jpg

Subbed interested to see where this goes. Good luck man

subbed! Very cool!

Well you have me intrigued. What made you decide to go with an internally gated BW EFR? From my research they have shown to be very hard to modulate and control boost levels.

We love to see other people using a 3d printer for prototyping, this looks pretty good so far.

Subbed as well.

Very nice, Subbed.

Nice , efr 7163 is also good

I really like the tech in the BW compared to the Garrett (Gamma-Ti wheel, ceramic bearings, stainless housing, etc.). The internal gate in the BW still isn't as good as an external gate but it's pretty damn good compared to any other internal gate. Their wastegate port design really is really awesome and if you want to nerd out on specs, design, and materials this is the turbo you pick lol. And there is absolutely no way I could package an externally gated twin scroll in this location. I plan on using a twin port wastegate actuator so hopefully that will help with the control a bit.

Just got mine a few weeks ago and I love it so far! I have random plastic parts all over my house now lol. Printed some brake ducts yesterday that bolt in as a direct replacement for the fog lights. :thumbsup:

That was at the top of my list with the mixed flow wheel. But I chickened out and went with the smaller one. I did some research but couldn't find really any good data of the 7163 vs 6758 spool times.

Subbed, I'm also in the Bay Area. Would definately want to see this when finished.

...must be nice. :(

Look forward to seeing the progress!